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Allow decorator on private members and class expressions #14548

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merged 4 commits into from Mar 21, 2023

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@fisker fisker commented Mar 21, 2023

Description

Fixes #14547

Checklist

  • I’ve added tests to confirm my change works.
  • (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory).
  • (If the change is user-facing) I’ve added my changes to changelog_unreleased/*/XXXX.md file following changelog_unreleased/TEMPLATE.md.
  • I’ve read the contributing guidelines.

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@fisker fisker marked this pull request as ready for review March 21, 2023 07:50
@fisker fisker merged commit 44aef0b into prettier:main Mar 21, 2023
26 checks passed
@fisker fisker deleted the ts-decorator branch March 21, 2023 08:13
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this pull request Mar 29, 2023
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [prettier](https://prettier.io) ([source](https://github.com/prettier/prettier)) | devDependencies | patch | [`2.8.4` -> `2.8.7`](https://renovatebot.com/diffs/npm/prettier/2.8.4/2.8.7) |

---

### Release Notes

<details>
<summary>prettier/prettier</summary>

### [`v2.8.7`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#&#8203;287)

[Compare Source](prettier/prettier@2.8.6...2.8.7)

[diff](prettier/prettier@2.8.6...2.8.7)

##### Allow multiple decorators on same getter/setter ([#&#8203;14584](prettier/prettier#14584) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @&#8203;decorator()
  get foo () {}

  @&#8203;decorator()
  set foo (value) {}
}

// Prettier 2.8.6
SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
  3 |   get foo () {}
  4 |
> 5 |   @&#8203;decorator()
    |   ^^^^^^^^^^^^
  6 |   set foo (value) {}
  7 | }

// Prettier 2.8.7
class A {
  @&#8203;decorator()
  get foo() {}

  @&#8203;decorator()
  set foo(value) {}
}
```

### [`v2.8.6`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#&#8203;286)

[Compare Source](prettier/prettier@2.8.5...2.8.6)

[diff](prettier/prettier@2.8.5...2.8.6)

##### Allow decorators on private members and class expressions ([#&#8203;14548](prettier/prettier#14548) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```ts
// Input
class A {
  @&#8203;decorator()
  #privateMethod () {}
}

// Prettier 2.8.5
SyntaxError: Decorators are not valid here. (2:3)
  1 | class A {
> 2 |   @&#8203;decorator()
    |   ^^^^^^^^^^^^
  3 |   #privateMethod () {}
  4 | }

// Prettier 2.8.6
class A {
  @&#8203;decorator()
  #privateMethod() {}
}
```

### [`v2.8.5`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#&#8203;285)

[Compare Source](prettier/prettier@2.8.4...2.8.5)

[diff](prettier/prettier@2.8.4...2.8.5)

##### Support TypeScript 5.0 ([#&#8203;14391](prettier/prettier#14391) by [@&#8203;fisker](https://github.com/fisker), [#&#8203;13819](prettier/prettier#13819) by [@&#8203;fisker](https://github.com/fisker), [@&#8203;sosukesuzuki](https://github.com/sosukesuzuki))

TypeScript 5.0 introduces two new syntactic features:

-   `const` modifiers for type parameters
-   `export type *` declarations

##### Add missing parentheses for decorator ([#&#8203;14393](prettier/prettier#14393) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```jsx
// Input
class Person {
  @&#8203;(myDecoratorArray[0])
  greet() {}
}

// Prettier 2.8.4
class Person {
  @&#8203;myDecoratorArray[0]
  greet() {}
}

// Prettier 2.8.5
class Person {
  @&#8203;(myDecoratorArray[0])
  greet() {}
}
```

##### Add parentheses for `TypeofTypeAnnotation` to improve readability ([#&#8203;14458](prettier/prettier#14458) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```tsx
// Input
type A = (typeof node.children)[];

// Prettier 2.8.4
type A = typeof node.children[];

// Prettier 2.8.5
type A = (typeof node.children)[];
```

##### Support `max_line_length=off` when parsing `.editorconfig` ([#&#8203;14516](prettier/prettier#14516) by [@&#8203;josephfrazier](https://github.com/josephfrazier))

If an .editorconfig file is in your project and it sets `max_line_length=off` for the file you're formatting,
it will be interpreted as a `printWidth` of `Infinity` rather than being ignored
(which previously resulted in the default `printWidth` of 80 being applied, if not overridden by Prettier-specific configuration).

<!-- prettier-ignore -->

```html
<!-- Input -->
<div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/>

<!-- Prettier 2.8.4 -->
<div
  className="HelloWorld"
  title={`You are visitor number ${num}`}
  onMouseOver={onMouseOver}
/>;

<!-- Prettier 2.8.5 -->
<div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;
```

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNS4yNC4yIiwidXBkYXRlZEluVmVyIjoiMzUuMjQuMiJ9-->

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1832
Reviewed-by: Epsilon_02 <epsilon_02@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
medikoo pushed a commit to medikoo/prettier-elastic that referenced this pull request Jan 4, 2024
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Decorators on accessor private fields report SyntaxError
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